Wire twisting device for core wire

Abstract

A wire twisting device for core wires comprises a roller, a wire inlet pipe and a wire outlet pipe are arranged at the left end and the right end of the roller respectively, and the wire inlet pipe is connected with the driving end of a driving mechanism; a first guide wheel, a second guide wheel, a third guide wheel and a fourth guide wheel are rotationally connected to an inner cavity of the roller, the central axes of the first guide wheel, the second guide wheel, the third guide wheel and the fourth guide wheel are arranged in parallel in the front-back direction, and the first guide wheel, the second guide wheel, the third guide wheel and the fourth guide wheel are located on the same side of a central shaft of the roller. The outer circumferences of the first guide wheel and the fourth guide wheel are tangent to the central axis of the roller; the second guide wheel is located on the side, away from the roller center shaft, of the first guide wheel. The third guide wheel is located on the side, away from the roller center shaft, of the fourth guide wheel. According to the utility model, the defects in the prior art are overcome, and the uniformity of the number of twists per unit length of the core wire can be effectively ensured. And therefore, the electromagnetic compatibility, the structural stability and the signal transmission quality of the core wire heating wire are ensured.

Description

Technical Field

[0001] This utility model relates to the field of heating wire manufacturing technology, specifically to a twisting device for core wires. Background Technology

[0002] In existing heating devices, such as heating blankets and localized human body heating products, heating wires are often used for heating. Heating wires mainly consist of a wire core and an insulation layer covering the wire core. They are characterized by rapid heating, uniform temperature, high thermal efficiency, good toughness, and excellent heat resistance.

[0003] When transmitting electrical energy or signals, heating wires may be subject to interference from external electromagnetic fields and may also generate electromagnetic radiation that interferes with other devices. By twisting the core wires of the heating wire, the electromagnetic fields between adjacent core wires will cancel each other out, thereby reducing electromagnetic interference and electromagnetic radiation, improving the electromagnetic compatibility of the heating wire, and also forming a more stable structure, enhancing the structural stability of the heating wire.

[0004] Currently, existing methods for twisting core wires typically involve manual twisting, which suffers from low efficiency and uneven twisting. Another method involves fixing one end of the core wire and twisting the other end together using a twisting device. However, twisting only one end results in uneven stress between the core wires, affecting the electromagnetic compatibility, structural stability, and signal transmission quality of the heating wire. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a twisting device for core wires, overcoming these deficiencies with a reasonable design that effectively ensures the uniformity of the number of twists per unit length of the core wire. This, in turn, guarantees the electromagnetic compatibility, structural stability, and signal transmission quality of the core wire heating wire.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A twisting device for core wire includes a roller, with an inlet pipe and an outlet pipe fixedly installed at the left and right ends of the roller, respectively. The inlet pipe and the outlet pipe are coaxially arranged with the roller, and the central cavity of the inlet pipe and the outlet pipe is connected to the inner cavity of the roller. The inlet pipe is rotatably connected to a first support frame, and the outlet pipe is rotatably connected to a second support frame. The inlet pipe or the outlet pipe is connected to the drive end of a drive mechanism, which is used to drive the inlet pipe or the outlet pipe to rotate.

[0008] The inner cavity of the drum is rotatably connected to a first guide wheel, a second guide wheel, a third guide wheel, and a fourth guide wheel via mounting shafts. The central axes of the first, second, third, and fourth guide wheels are all parallel to each other in the front-rear direction, and their radial surfaces are all located on the same plane. Furthermore, the first, second, third, and fourth guide wheels are all located on the same side of the drum's central axis. The outer circumferences of the first and fourth guide wheels are tangent to the central axis of the drum. The second guide wheel is located on the side of the first guide wheel away from the drum's central axis, and the third guide wheel is located on the side of the fourth guide wheel away from the drum's central axis.

[0009] Preferably, the driving mechanism includes a drive motor, which is fixedly installed on the outer side of the first support frame or the outer side of the second support frame. The output shaft of the drive motor passes through the first support frame or the second support frame and is fixedly installed with a drive gear. A driven gear is coaxially fixedly installed on the outer surface of the inlet pipe or the outer surface of the outlet pipe. The drive gear is connected to the driven gear through a chain.

[0010] Preferably, ball bearings are embedded in both the first support frame and the second support frame, and the inlet pipe and the outlet pipe are rotatably connected to the first support frame and the second support frame respectively through ball bearings.

[0011] Preferably, the outer circumferential surfaces of the first guide wheel, the second guide wheel, the third guide wheel, and the fourth guide wheel are each provided with multiple guide grooves.

[0012] This invention provides a twisting device for core wires. It offers the following advantages: A driving mechanism drives the entire drum to rotate at a uniform speed, causing the first, second, third, and fourth guide wheels inside the drum to rotate synchronously around the drum's central axis. This, in turn, causes the core wire wound around these guide wheels to rotate synchronously around the drum's central axis. Therefore, it effectively achieves the twisting effect on the core wire. Furthermore, this process does not affect the uniform movement of the core wire itself, and because the drum also rotates at a uniform speed driven by the mechanism, the uniformity of the number of twists per unit length of the core wire is effectively ensured. This, in turn, effectively guarantees the electromagnetic compatibility, structural stability, and signal transmission quality of the subsequent core wire heating wire. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in this utility model or the prior art, the accompanying drawings used in the description of the prior art will be briefly introduced below.

[0014] Figure 1 A schematic diagram of the structure of this utility model;

[0015] Figure 2A schematic diagram of the cross-sectional structure of this utility model;

[0016] Explanation of the labels in the diagram:

[0017] 1. Roller; 2. Inlet pipe; 3. Outlet pipe; 4. First support frame; 5. Second support frame; 6. First guide wheel; 7. Second guide wheel; 8. Third guide wheel; 9. Fourth guide wheel; 10. Drive motor; 11. Drive gear; 12. Driven gear; 13. Ball bearing; 14. Core wire. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0019] Example 1, as Figure 1-2 As shown, a twisting device for core wire includes a roller 1. A wire inlet pipe 2 and a wire outlet pipe 3 are fixedly installed at the left and right ends of the roller 1, respectively. The wire inlet pipe 2 and the wire outlet pipe 3 are coaxially arranged with the roller 1. The central cavity of the wire inlet pipe 2 and the wire outlet pipe 3 is connected to the inner cavity of the roller 1. The wire inlet pipe 2 is rotatably connected to a first support frame 4, and the wire outlet pipe 3 is rotatably connected to a second support frame 5. The wire inlet pipe 2 or the wire outlet pipe 3 is connected to the driving end of a driving mechanism. The driving mechanism is used to drive the wire inlet pipe 2 or the wire outlet pipe 3 to rotate.

[0020] The inner cavity of the drum 1 is rotatably connected to a first guide wheel 6, a second guide wheel 7, a third guide wheel 8, and a fourth guide wheel 9 via mounting shafts. The central axes of the first guide wheel 6, the second guide wheel 7, the third guide wheel 8, and the fourth guide wheel 9 are all parallel to each other in the front-back direction. The radial surfaces of the first guide wheel 6, the second guide wheel 7, the third guide wheel 8, and the fourth guide wheel 9 are all located on the same plane. The first guide wheel 6, the second guide wheel 7, the third guide wheel 8, and the fourth guide wheel 9 are all located on the same side of the central axis of the drum 1. The outer circumferences of the first guide wheel 6 and the fourth guide wheel 9 are tangent to the central axis of the drum 1. The second guide wheel 7 is located on the side of the first guide wheel 6 away from the central axis of the drum 1, and the third guide wheel 8 is located on the side of the fourth guide wheel 9 away from the central axis of the drum 1.

[0021] Working principle:

[0022] During operation, the core wire is first passed through the inlet pipe 2, then sequentially around the first guide wheel 6, the second guide wheel 7, the third guide wheel 8, and the fourth guide wheel 9, before exiting through the outlet pipe 3. The end of the core wire can be connected to the core wire traction machine, which then drives the core wire to move at a constant speed. In this embodiment, a hinged door can be connected to the outer wall of the drum 1. Therefore, when it is necessary to pass the core wire around the first guide wheel 6, the second guide wheel 7, the third guide wheel 8, and the fourth guide wheel 9, the door can be opened to facilitate the winding of the core wire within the drum 1. After winding, the door can be closed and locked to the outer surface of the drum 1.

[0023] Then, a drive mechanism drives the inlet tube 2 or outlet tube 3 to rotate at a constant speed, which in turn drives the entire drum 1 to rotate synchronously. This causes the first guide wheel 6, the second guide wheel 7, the third guide wheel 8, and the fourth guide wheel 9 inside the drum 1 to rotate synchronously around the central axis of the drum 1. Since the first guide wheel 6, the second guide wheel 7, the third guide wheel 8, and the fourth guide wheel 9 are all located on the same side of the central axis of the drum 1, the core wire wound on the first guide wheel 6, the second guide wheel 7, the third guide wheel 8, and the fourth guide wheel 9 also rotates synchronously around the central axis of the drum 1. Therefore, the twisting effect of the core wire can be effectively achieved. In this process, the uniform movement of the core wire itself will not be affected, and since the drum 1 is also driven by the drive mechanism to rotate at a constant speed, the uniformity of the number of twists per unit length of the core wire is effectively guaranteed. This effectively ensures the electromagnetic compatibility, structural stability, and signal transmission quality of the subsequent core wire heating wire.

[0024] In this embodiment, by tangenting the outer circumferences of the first guide wheel 6 and the fourth guide wheel 9 to the central axis of the roller 1, the core wire can coincide with the central axis of the roller 1 when entering from the inlet pipe 2 and exiting from the outlet pipe 3, thereby effectively avoiding the problem of friction between the core wire and the inner wall of the roller 1.

[0025] In addition, in this embodiment, two sets of the twisting device of this utility model can be set up to twist the core wires led out from the outlet tube 3 together. Then, the rollers 1 of the two twisting devices can be rotated in opposite directions by controlling the drive mechanism of each device, so that the core wires can be twisted together to form a twisted strand rope.

[0026] In Embodiment Two, as a further preferred embodiment of Embodiment One, the driving mechanism includes a drive motor 10. The drive motor 10 is fixedly mounted on the outer side of the first support frame 4 or the outer side of the second support frame 5. The output shaft of the drive motor 10 passes through the first support frame 4 or the second support frame 5 and is fixedly mounted with a drive gear 11. A driven gear 12 is coaxially fixedly mounted on the outer surface of the inlet pipe 2 or the outer surface of the outlet pipe 3. The drive gear 11 is connected to the driven gear 12 via a chain. Specifically, in this embodiment, when the drive motor 10 is fixedly mounted on the outer side of the first support frame 4, the driven gear 12 is coaxially fixedly mounted on the outer surface of the inlet pipe 2. When the drive motor 10 is fixedly mounted on the outer side of the second support frame 5, the driven gear 12 is coaxially fixedly mounted on the outer surface of the outlet pipe 3.

[0027] Therefore, when controlling the rotation of the roller 1, the output shaft of the drive motor 10 can be controlled to drive the drive gear 11 to rotate at a constant speed. Then, through the transmission connection between the drive gear 11 and the driven gear 12, the driven gear 12 is driven to rotate, and the driven gear 12 drives the entire roller 1 to rotate synchronously at a constant speed. In this embodiment, the power of the drive motor 10 can be precisely controlled according to the required single twist of different core wires to control the rotation speed of the roller 1, thereby achieving the effect of controlling and adjusting the single twist of the core wires, and effectively improving the applicability and application scope of this utility model.

[0028] In Example 3, as a further preferred embodiment of Example 1, ball bearings 13 are embedded in both the first support frame 4 and the second support frame 5. The inlet pipe 2 and the outlet pipe 3 are rotatably connected to the first support frame 4 and the second support frame 5 respectively through the ball bearings 13. The ball bearings 13 effectively ensure the stability of the inlet pipe 2 and the outlet pipe 3 during rotation, thereby effectively ensuring the stability of the roller 1 during rotation.

[0029] In Example 4, as a further preferred embodiment of Example 1, multiple guide grooves are each formed on the outer circumferential surfaces of the first guide wheel 6, the second guide wheel 7, the third guide wheel 8, and the fourth guide wheel 9. By forming multiple guide grooves on the outer circumferential surfaces of these wheels, multiple core wires can be wound together in parallel on their outer circumferential surfaces and then led out from the outlet tube 3 for twisting. Therefore, by controlling the rotation of the roller 1, the multiple core wires can be twisted together to form a rope.

[0030] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A twisting device for core wires, characterized in that: Includes a roller (1), with an inlet pipe (2) and an outlet pipe (3) fixedly installed at the left and right ends of the roller (1), respectively. The inlet pipe (2) and the outlet pipe (3) are coaxially arranged with the roller (1). The central cavity of the inlet pipe (2) and the outlet pipe (3) is connected to the inner cavity of the roller (1). The inlet pipe (2) is rotatably connected to the first support frame (4), and the outlet pipe (3) is rotatably connected to the second support frame (5). The inlet pipe (2) or the outlet pipe (3) is connected to the driving end of the driving mechanism. The driving mechanism is used to drive the inlet pipe (2) or the outlet pipe (3) to rotate. The inner cavity of the drum (1) is rotatably connected to a first guide wheel (6), a second guide wheel (7), a third guide wheel (8), and a fourth guide wheel (9) via mounting shafts. The central axes of the first guide wheel (6), the second guide wheel (7), the third guide wheel (8), and the fourth guide wheel (9) are all parallel to each other in the front-back direction. The radial surfaces of the first guide wheel (6), the second guide wheel (7), the third guide wheel (8), and the fourth guide wheel (9) are all located on the same plane. The first guide wheel (6), the second guide wheel (7), the third guide wheel (8), and the fourth guide wheel (9) are all located on the same side of the central axis of the drum (1). The outer circumferences of the first guide wheel (6) and the fourth guide wheel (9) are tangent to the central axis of the drum (1). The second guide wheel (7) is located on the side of the first guide wheel (6) away from the central axis of the drum (1), and the third guide wheel (8) is located on the side of the fourth guide wheel (9) away from the central axis of the drum (1).

2. The twisting device for core wire according to claim 1, characterized in that: The driving mechanism includes a drive motor (10), which is fixedly installed on the outer side of the first support frame (4) or the outer side of the second support frame (5). The output shaft of the drive motor (10) passes through the first support frame (4) or the second support frame (5) and is fixedly installed with a drive gear (11). A driven gear (12) is coaxially fixedly installed on the outer surface of the inlet pipe (2) or the outer surface of the outlet pipe (3). The drive gear (11) is connected to the driven gear (12) through a chain.

3. The twisting device for core wire according to claim 1, characterized in that: Ball bearings (13) are embedded in both the first support frame (4) and the second support frame (5). The inlet pipe (2) and the outlet pipe (3) are rotatably connected to the first support frame (4) and the second support frame (5) respectively through the ball bearings (13).

4. The twisting device for core wire according to claim 1, characterized in that: The outer circumferential surfaces of the first guide wheel (6), the second guide wheel (7), the third guide wheel (8), and the fourth guide wheel (9) are each provided with multiple guide grooves.

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